we have the same problem with Corel x6. We did upgrades to Win10 on our PC's, now we have to install some corel updates. Evertime i put in our account information at the log in screen, nothing happens. do you have any solution yet?

I've made it! In our case it was just the antivirus program, which blocked the screen. At the moment it was turned off, everything worked. And after turning it on again, it still worked. Maybe this is your problem too, and i hope if it works, you can give back the new buyed corel licenses. Good Luck!